Now that the U.S. government has cleared the Keystone XL project of any dire environmental impact, attention is returning to why the pipeline was needed in the first place: to get more Canadian oil to U.S. refineries.

Brazil’s real gained the most in a month after the central bank stepped up efforts to arrest the world’s worst currency decline, announcing a $60 billion intervention program involving currency swaps and loans.

The real dropped to a four-year low as U.S. Federal Reserve minutes signaled broad support for a plan to curtail a stimulus program, prompting Brazil’s central bank to intervene in the currency market.

Brazil’s economy expanded in the third quarter at half the pace forecast by economists, as government stimulus efforts fail to revive investment that fell for the fifth straight period. Rate futures plunged.